// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_NAVIGATION_STATE_IMPL_H_
#define CONTENT_RENDERER_NAVIGATION_STATE_IMPL_H_

#include <string>

#include "base/macros.h"
#include "content/common/navigation_params.h"
#include "content/public/renderer/navigation_state.h"

namespace content {

class CONTENT_EXPORT NavigationStateImpl : public NavigationState {
public:
    ~NavigationStateImpl() override;

    static NavigationStateImpl* CreateBrowserInitiated(
        const CommonNavigationParams& common_params,
        const StartNavigationParams& start_params,
        const RequestNavigationParams& request_params);

    static NavigationStateImpl* CreateContentInitiated();

    // NavigationState implementation.
    ui::PageTransition GetTransitionType() override;
    bool WasWithinSamePage() override;
    bool IsContentInitiated() override;

    const CommonNavigationParams& common_params() const { return common_params_; }
    const StartNavigationParams& start_params() const { return start_params_; }
    const RequestNavigationParams& request_params() const
    {
        return request_params_;
    }
    bool request_committed() const { return request_committed_; }
    void set_request_committed(bool value) { request_committed_ = value; }
    void set_was_within_same_page(bool value) { was_within_same_page_ = value; }

    void set_transition_type(ui::PageTransition transition)
    {
        common_params_.transition = transition;
    }

private:
    NavigationStateImpl(const CommonNavigationParams& common_params,
        const StartNavigationParams& start_params,
        const RequestNavigationParams& request_params,
        bool is_content_initiated);

    bool request_committed_;
    bool was_within_same_page_;

    // True if this navigation was not initiated via WebFrame::LoadRequest.
    const bool is_content_initiated_;

    CommonNavigationParams common_params_;
    const StartNavigationParams start_params_;

    // Note: if IsContentInitiated() is false, whether this navigation should
    // replace the current entry in the back/forward history list is determined by
    // the should_replace_current_entry field in |history_params|. Otherwise, use
    // replacesCurrentHistoryItem() on the WebDataSource.
    //
    // TODO(davidben): It would be good to unify these and have only one source
    // for the two cases. We can plumb this through WebFrame::loadRequest to set
    // lockBackForwardList on the FrameLoadRequest. However, this breaks process
    // swaps because FrameLoader::loadWithNavigationAction treats loads before a
    // FrameLoader has committedFirstRealDocumentLoad as a replacement. (Added for
    // http://crbug.com/178380).
    const RequestNavigationParams request_params_;

    DISALLOW_COPY_AND_ASSIGN(NavigationStateImpl);
};

} // namespace content

#endif // CONTENT_RENDERER_NAVIGATION_STATE_IMPL_H_
